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init is a reserved keyword and Swift 4.2 got a bit stricter about using
it. this could be fixed by adding apostrophes around init but makes the
code uglier. hence i just renamed init to initialized and for
consistency uninit to uninitialized.
Fixes #5899
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the pre-allocation was needed because the layer allocated a opengl
context async itself and we couldn't influence that. so we had to start
the core after the context was actually allocated. furthermore a window,
view and layer hierarchy had to be created so the layer would create
a context.
now, instead of relying on the layer to create a context we do this
manually and re-use that context later when the layer wants to create
one async itself.
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we rendered on the displaylink thread which wasn't the best idea. if
rendering took too long or was blocking it also blocked the displaylink
callback. when that happened new vsyncs were reported delayed or not at
all. consequently the mpv_render_context_report_swap function wasn't
called consistently and that could cause bad video playback. so the
rendering is moved to a dedicated dispatch queue. furthermore the update
callback starts a layer update directly instead of the displaylink
callback, making the rendering a bit more consistent.
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commit 2edf00f changed the MPV_EVENT_SHUTDOWN behaviour slightly, such
that it will only be sent once. cocoa-cb relied on it being sent
continuously till all mpv_handles are destroyed. now it manually shuts
down and destroys the mpv_handle after the animation instead of relying
on this removed behaviour.
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the first mouse events, that try to hide the title bar, could happen
before the title bar was actually initialised. that caused our hiding
code to access a nil value. check for an available title bar before
trying to hide it.
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there were actually a few small problems. the fatalError() function
wasn't supposed to be called there and caused an "Illegal instruction".
this was replaced by a print and exit() call. the second problem was
that cocoa returns a kCGLBadPixelFormat instead of a kCGLBadAttribute
error, which broke our check, immediately exited our loop and no working
pixel format was ever created. the third problem was that macOS 10.12
didn't return any errors but also didn't return a pixel format, that
also broke our check. now the code checks for both cases.
Fixes #5631
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mouse events and the tracking area are needed for (un)hiding the new
title bar, which was broken when input-cursor=no was set. no tracking
area was ever created and set which completely deactivated any mouse
events. the specific mouse event functions were already deactivated
proactively and have the needed check. no events are being propagated to
the mpv core when input-cursor=no is set, even with an active tracking
area.
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on a file change and when the aspect ratio of the window changed, the
first live resize state had a wrong aspect ratio because the new aspect
ratio was only set after the first resize. just set the new content
frame before the resize.
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i tried being smart and handle aspect ratio differences manually via
atomic drawing and resizing to aspect fitted frames. there were a few
issues with that. like unexpected visibility of certain System GUI
elements on entering fullscreen or visually dropped frames due to the
atomic drawing. now we rely on system mechanics to keep the proper
aspect ratio of our layer, the recommended way. as a side effect it also
fixes a segfault.
Fixes #5581
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a new replacement API was introduced with b037121 and the old one was
deprecated. porting cocoa-cb to the new API.
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the NSWindowButton enum was moved to be a member of NSWindow and renamed
to ButtonType in SDK 10.13. apparently that wasn't documented anywhere.
not even in the SDK changes Document and the official Documentations
makes it look like it was always like this. the old NSWindowButton enum
though is still around on SDK 10.13 or at least got a typealias. so we
will just use that.
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when resizing async it's possible that the layer, and the underlying gl
surface, is stretched on an aspect ratio change. to prevent that we do
an atomic resize (resize and draw at the same time). usually max one
unique frame should be dropped but it's possible, depending on the
performance, that more are dropped.
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the title bar is now within the window bounds instead of outside. same
as QuickTime Player. it supports several standard styles, two dark and
two light ones. additionally we have properly rounded corners now and
the borderless window also has the proper window shadow.
Also make the earliest supported macOS version 10.10.
Fixes #4789, #3944
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even though the fullscreen animation has a shorter duration than the
system wide animation (space sliding effect) there are still cases where
it takes longer, eg performance issues (especially on init). furthermore
the final size of the animation is usually different than the actual
fullscreen size because of spect ratio differences. the actual resize to
fullscreen is done automatically by cocoa itself when the actual
transition to fullscreen happens (system event). so it could happen that
the last animation resize happened after the actual resize to fullscreen
leading to a wrongly sized frame after entering fullscreen. to prevent
this we cancel the animation when entering fullscreen, we always set the
proper frame size when in fullscreen and discard any other frame sizes,
and to prevent some performance problems on init we push entering
fullscreen to the end of the main queue to execute it when most of the
init routines are done.
Fixes #5525
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on live resize, eg async resize, the layer's bounds size is not in sync
with the actual surface size. this led to a wrongly sized frame and a
perceived flicker. get and use the actual surface size instead.
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drawing off-screen failed because we didn't have a valid context. the
problem is we force off-screen drawing because the CAOpenGLLayer refuses
to draw anything while being off-screen. set the current context before
starting to draw anything off-screen.
Fixes #5530
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this is meant to replace the old and not properly working vo_gpu/opengl
cocoa backend in the future. the problems are various shortcomings of
Apple's opengl implementation and buggy behaviour in certain
circumstances that couldn't be properly worked around. there are also
certain regressions on newer macOS versions from 10.11 onwards.
- awful opengl performance with a none layer backed context
- huge amount of dropped frames with an early context flush
- flickering of system elements like the dock or volume indicator
- double buffering not properly working with a none layer backed context
- bad performance in fullscreen because of system optimisations
all the problems were caused by using a normal opengl context, that
seems somewhat abandoned by apple, and are fixed by using a layer backed
opengl context instead. problems that couldn't be fixed could be
properly worked around.
this has all features our old backend has sans the wid embedding,
the possibility to disable the automatic GPU switching and taking
screenshots of the window content. the first was deemed unnecessary by
me for now, since i just use the libmpv API that others can use anyway.
second is technically not possible atm because we have to pre-allocate
our opengl context at a time the config isn't read yet, so we can't get
the needed property. third one is a bit tricky because of deadlocking
and it needed to be in sync, hopefully i can work around that in the
future.
this also has at least one additional feature or eye-candy. a properly
working fullscreen animation with the native fs. also since this is a
direct port of the old backend of the parts that could be used, though
with adaptions and improvements, this looks a lot cleaner and easier to
understand.
some credit goes to @pigoz for the initial swift build support which
i could improve upon.
Fixes: #5478, #5393, #5152, #5151, #4615, #4476, #3978, #3746, #3739,
#2392, #2217
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